K3 4G LTE Push-To-Talk Over Cellular Radio

$280.00 $129.00

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Model K3
Android Android 4.4
Dimension 140 mm x 60.5 mm x 26.7mm
Material ABS
Colour Black
Weight 187g
Platform Spreadtrum 9820E
Memory 512Gb+4Gb
IP Grade IP54
Frequency GSM: 850/900/1800/1900
WCDMA: 1/2/5/8
FDD EU version: 1/3/5/7/8
TDD EU version38/39/40/41
FDD US version: 1/2/7/4 select 3 from 4
TDD US version: 5/12/13/17/28AB select 3 from 5
Antenna FPC antenna
Display 1.77 , resolution 128*160
WIFI Optional *
BT Not support
SD card Not support
SIM card Single Micro carddual card optional
MIC Single
USB mirco
Earphone 3.5mm Dual hole universal earphone for radioK type
Flashlight Support
Speaker 8Ω 1W
Max output Class 3  (23dBm±2dB) for LTE FDD
Class 3  (23dBm±2dB) for LTE TDD
Class 3  (24dBm+1/-3dB) for WCDMA
Class E2 (27dBm±3dB) for EDGE 850/900MHz
Class E2 (26dBm±3dB) for EDGE 1800/1900MHz
Class 4  (33dBm±2dB) for GSM 850/900MHz
Class 1  (30dBm±2dB) for GSM 1800/1900MHz
2G network 2G -EGSM/GPRS
Working temperature -10ºC - 55ºC
Storage temperature -40ºC - 70ºC
Operating humidity 1095
Battery 4000 mAh  3.7V Polymer lithium battery
Talk time About 10 hours
Standby time About 72 hours
Input voltage AC100240 Volts
Frequency 5060HZ
Output voltage/current 5V/1.0A
Network 2G/3G/4G
Language Chinese English
Group call Support
Temporary session function Support
Channel session function Voice control, channel member display, channel change notification, channel push to talk
Working Mode Transparent mode, HTTP mode
Network Protocol Support
Network Protocol TCP/UDP/HTTP/DNS/FTP
Simple transparent mode Support TCP Client /UDP Client
Domain Name System DNS Support
HTTP protocol transmission Support
Heartbeat packet Support
FOTA update Support
SIM card Support SIM card 1.8 / 3.0V
* The built-in module supports WIFI and requires separate peripheral circuits and antennas.